MEDIUM

CVE-2021-35479

CVSS v3

5.4

MEDIUM

EPSS Score

13.2 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2021-35479 yet.

Full record on NVD

Description

Nagios Log Server before 2.1.9 contains Stored XSS in the custom column view for the alert history and audit log function through the affected pp parameter. This affects users who open a crafted link or third-party web page.

Technical details

Published: 2021-07-30

Frequently asked questions

What is CVE-2021-35479?

Is CVE-2021-35479 actively exploited?

Active exploitation of CVE-2021-35479 has not been confirmed. Its EPSS score was 13.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-35479?

CVE-2021-35479 has a CVSS v3 base score of 5.4 (MEDIUM severity).

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